70% of Meteorites from Just Three Asteroid Families

Scientists have cracked the cosmic code: about 70% of meteorites hitting Earth hail from three asteroid families in the main belt—Massalia, Karin, and Koronis. Massalia, the granddaddy at 40 million years old, contributes over 37% of meteorites, while the younger Karin (5.8M years) and Koronis (7.5M years) families round out the trio. With 15% still playing hide-and-seek, these findings pave the way for targeted space missions and deeper solar system insights. Who knew asteroid family reunions could be so impactful?